DbQuery: push/pop param count before execution

This is for backwards compatibility with legacy code still relying on
DB API functions. Without this, parameter count gets reset after query
execution, which causes issues on PostgreSQL.

Fixes #27113

core/classes/DbQuery.class.php

@@ -241,6 +241,12 @@ public function set_offset( $p_offset = -1 ) {
 	 * @return IteratorAggregate|boolean ADOdb result set or false if the query failed.
 	 */
 	public function execute( array $p_bind_array = null, $p_limit = null, $p_offset = null ) {
+		# For backwards compatibility with legacy code still relying on DB API,
+		# we need to save the parameters count before binding otherwise it will
+		# be reset after query execution, which will cause issues on RDBMS with
+		# numbered params (e.g. PostgreSQL).
+		db_param_push();
+
 		# bind values if provided
 		if( null !== $p_bind_array ) {
 			$this->bind_values( $p_bind_array );
@@ -251,7 +257,9 @@ public function execute( array $p_bind_array = null, $p_limit = null, $p_offset
 		$this->process_bind_params();
 		$this->process_sql_syntax();
 
-		return $this->db_execute( $p_limit, $p_offset );
+		$t_result = $this->db_execute($p_limit, $p_offset);
+		db_param_pop();
+		return $t_result;
 	}
 
 	/**